NUR 603- Exam 2 Questions with 100% Correct Answers

Linings in the gastrointestinal, genitourinary, and respiratory tracts. Correct Answer What is a mechanical barrier in our body's first line defense? Innate immunity/resistance Correct Answer What is your first line of immunity defense referred to as? Skin Correct Answer What is a physical barrier in our body's first line defense? Goblet cells in the respiratory tract produce mucous that traps microorganisms and they are then removed by cilia coughing and sneezing Correct Answer Example of mechanical barrier. •saliva, tears, earwax, sweat, and sebum •Antimicrobial peptides •Normal bacterial flora Correct Answer What is a biochemical barrier in our body's first line defense? Gut flora: Aid in digestion. Help to absorb certain minerals. They keep pathogens from sticking to epithelia lining by competing other with other pathogens for nutrients. Produce chemicals that Inhibit bacteria growth. Correct Answer What is the role of normal flora? -Aid in removal and have antibacterial/anti fungal properties -Lysosomes in tears, saliva and sweat- attacks walls of gram + bacteria Correct Answer How do saliva , tears and sweat combat infection? Inflammation Correct Answer What is your second line of immunity defense referred to as? o Occurs in tissues with a blood supply o Is activated rapidly o Depends on the activity of both cellular and chemical components, including plasma proteins o Is nonspecific Correct Answer Describe the inflammatory response. Where does it occur? How long does it take to be activated? Does it depend on cellular activity , chemical activity, or both? Is it specific or non specific? 1) limit the extent of tissue damage 2) destroy contaminating infectious microorganisms